Counter with decimal step

I try to implement a counter with decimal step.
But it does not work correctly.

See for more details https://snippet.webix.com/b5tg99ht
Try use counter from 0 to 12

There is any way to prevent values enter using keyboards or copy-paste? Or how can I escape a wrong input?

hi,

i hope it helps:
https://snippet.webix.com/7ubqapqq

Hi,

Exactly what is needed

Many thanks.